Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Illinois

Counties in Illinois by uninsured rate, under 65 (US model-based estimate)

Cook County had the highest uninsured rate, under 65 (US model-based estimate) of 102 counties in 2019, at 10.9%. Monroe County had the lowest, at 3.8%. The median was 7.1% and the figure for Illinois was 8.7%. Source: the U.S. Census Bureau.

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Highest10.9Cook County
Lowest3.8Monroe County
Median7.1102 counties
Illinois8.7History

Map of counties, 2019

Adams County: 6.1 %Alexander County: 7.7 %Bond County: 7.1 %Boone County: 8.5 %Brown County: 4.3 %Bureau County: 7.3 %Calhoun County: 7.1 %Carroll County: 7.4 %Cass County: 10.2 %Champaign County: 7.1 %Christian County: 6.8 %Clark County: 6.5 %Clay County: 7.1 %Clinton County: 6 %Coles County: 7.4 %Cook County: 10.9 %Crawford County: 6.8 %Cumberland County: 7.1 %DeKalb County: 7.5 %De Witt County: 6.5 %Douglas County: 10.9 %DuPage County: 6.4 %Edgar County: 7 %Edwards County: 6.2 %Effingham County: 6 %Fayette County: 9.3 %Ford County: 7.1 %Franklin County: 8 %Fulton County: 7.9 %Gallatin County: 7.1 %Greene County: 7 %Grundy County: 5.5 %Hamilton County: 6.7 %Hancock County: 6.9 %Hardin County: 8.1 %Henderson County: 7.8 %Henry County: 6.8 %Iroquois County: 8.7 %Jackson County: 8.3 %Jasper County: 6.9 %Jefferson County: 7.3 %Jersey County: 5.9 %Jo Daviess County: 8 %Johnson County: 7.3 %Kane County: 10.2 %Kankakee County: 7.4 %Kendall County: 6.4 %Knox County: 7.3 %Lake County: 8.2 %LaSalle County: 6.5 %Lawrence County: 7.4 %Lee County: 6.2 %Livingston County: 6.5 %Logan County: 5.5 %McDonough County: 7.4 %McHenry County: 7.1 %McLean County: 5.8 %Macon County: 6 %Macoupin County: 6.7 %Madison County: 6.4 %Marion County: 7 %Marshall County: 6.6 %Mason County: 6.9 %Massac County: 7.1 %Menard County: 5.8 %Mercer County: 6.4 %Monroe County: 3.8 %Montgomery County: 7 %Morgan County: 6.1 %Moultrie County: 8.6 %Ogle County: 7.2 %Peoria County: 7.3 %Perry County: 6.9 %Piatt County: 5.7 %Pike County: 7.7 %Pope County: 8.4 %Pulaski County: 8.4 %Putnam County: 6.3 %Randolph County: 6.6 %Richland County: 7.7 %Rock Island County: 8.1 %St. Clair County: 7.2 %Saline County: 7.5 %Sangamon County: 6.5 %Schuyler County: 7.3 %Scott County: 5.7 %Shelby County: 6.1 %Stark County: 7.2 %Stephenson County: 6.6 %Tazewell County: 5.5 %Union County: 8.4 %Vermilion County: 6.6 %Wabash County: 6.7 %Warren County: 8.5 %Washington County: 5.6 %Wayne County: 8.4 %White County: 7.2 %Whiteside County: 6.8 %Will County: 6.9 %Williamson County: 6.7 %Winnebago County: 8.1 %Woodford County: 5.7 %
  • Under 6.1
  • 6.1 to 6.7
  • 6.7 to 7.1
  • 7.1 to 7.3
  • 7.3 to 8.1
  • 8.1 and over
%, 2019. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2019

Cook County: 10.9 %Cook County10.9Douglas County: 10.9 %Douglas County10.9Cass County: 10.2 %Cass County10.2Kane County: 10.2 %Kane County10.2Fayette County: 9.3 %Fayette County9.3Iroquois County: 8.7 %Iroquois County8.7Moultrie County: 8.6 %Moultrie County8.6Boone County: 8.5 %Boone County8.5Warren County: 8.5 %Warren County8.5Pope County: 8.4 %Pope County8.4Pulaski County: 8.4 %Pulaski County8.4Union County: 8.4 %Union County8.4Wayne County: 8.4 %Wayne County8.4Jackson County: 8.3 %Jackson County8.3Lake County: 8.2 %Lake County8.2Hardin County: 8.1 %Hardin County8.1Rock Island County: 8.1 %Rock Island County8.1Winnebago County: 8.1 %Winnebago County8.1Franklin County: 8 %Franklin County8Jo Daviess County: 8 %Jo Daviess County8Fulton County: 7.9 %Fulton County7.9Henderson County: 7.8 %Henderson County7.8Alexander County: 7.7 %Alexander County7.7Pike County: 7.7 %Pike County7.7Richland County: 7.7 %Richland County7.7DeKalb County: 7.5 %DeKalb County7.5Saline County: 7.5 %Saline County7.5Carroll County: 7.4 %Carroll County7.4Coles County: 7.4 %Coles County7.4Kankakee County: 7.4 %Kankakee County7.4Lawrence County: 7.4 %Lawrence County7.4McDonough County: 7.4 %McDonough County7.4Bureau County: 7.3 %Bureau County7.3Jefferson County: 7.3 %Jefferson County7.3Johnson County: 7.3 %Johnson County7.3Knox County: 7.3 %Knox County7.3Peoria County: 7.3 %Peoria County7.3Schuyler County: 7.3 %Schuyler County7.3Ogle County: 7.2 %Ogle County7.2St. Clair County: 7.2 %St. Clair County7.2Cook County: 10.9 %Cook County10.9Douglas County: 10.9 %Douglas County10.9Cass County: 10.2 %Cass County10.2Kane County: 10.2 %Kane County10.2Fayette County: 9.3 %Fayette County9.3Iroquois County: 8.7 %Iroquois County8.7Moultrie County: 8.6 %Moultrie County8.6Boone County: 8.5 %Boone County8.5Warren County: 8.5 %Warren County8.5Pope County: 8.4 %Pope County8.4Pulaski County: 8.4 %Pulaski County8.4Union County: 8.4 %Union County8.4Wayne County: 8.4 %Wayne County8.4Jackson County: 8.3 %Jackson County8.3Lake County: 8.2 %Lake County8.2Hardin County: 8.1 %Hardin County8.1Rock Island County: 8.1 %Rock Island County8.1Winnebago County: 8.1 %Winnebago County8.1Franklin County: 8 %Franklin County8Jo Daviess County: 8 %Jo Daviess County8Fulton County: 7.9 %Fulton County7.9Henderson County: 7.8 %Henderson County7.8Alexander County: 7.7 %Alexander County7.7Pike County: 7.7 %Pike County7.7Richland County: 7.7 %Richland County7.7DeKalb County: 7.5 %DeKalb County7.5Saline County: 7.5 %Saline County7.5Carroll County: 7.4 %Carroll County7.4Coles County: 7.4 %Coles County7.4Kankakee County: 7.4 %Kankakee County7.4Lawrence County: 7.4 %Lawrence County7.4McDonough County: 7.4 %McDonough County7.4Bureau County: 7.3 %Bureau County7.3Jefferson County: 7.3 %Jefferson County7.3Johnson County: 7.3 %Johnson County7.3Knox County: 7.3 %Knox County7.3Peoria County: 7.3 %Peoria County7.3Schuyler County: 7.3 %Schuyler County7.3Ogle County: 7.2 %Ogle County7.2St. Clair County: 7.2 %St. Clair County7.2
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2019 (%)Change on 2018
1Cook County10.9+0.7 pts
1Douglas County10.9+0.7 pts
3Cass County10.2+1.1 pts
3Kane County10.2+0.4 pts
5Fayette County9.3+1.5 pts
6Iroquois County8.7+1.4 pts
7Moultrie County8.60 pts
8Boone County8.5+1 pts
8Warren County8.5+1.2 pts
10Pope County8.4+0.8 pts
10Pulaski County8.4+1.2 pts
10Union County8.4+1.3 pts
10Wayne County8.4+1 pts
14Jackson County8.3+0.1 pts
15Lake County8.2+0.8 pts
16Hardin County8.1+0.4 pts
16Rock Island County8.1+1.1 pts
16Winnebago County8.1+0.1 pts
19Franklin County8+1.3 pts
19Jo Daviess County8+1.4 pts
21Fulton County7.9+1.1 pts
22Henderson County7.8+0.8 pts
23Alexander County7.7+0.9 pts
23Pike County7.7+0.6 pts
23Richland County7.7+0.8 pts
26DeKalb County7.5+1 pts
26Saline County7.5+1 pts
28Carroll County7.4+0.4 pts
28Coles County7.4+0.5 pts
28Kankakee County7.4+0.8 pts
28Lawrence County7.4+0.9 pts
28McDonough County7.40 pts
33Bureau County7.3+0.2 pts
33Jefferson County7.3+0.8 pts
33Johnson County7.3+0.9 pts
33Knox County7.3+0.7 pts
33Peoria County7.3+0.4 pts
33Schuyler County7.3+0.2 pts
39Ogle County7.2-0.3 pts
39St. Clair County7.2+1 pts
39Stark County7.2+1 pts
39White County7.2+0.5 pts
43Bond County7.1+0.9 pts
43Calhoun County7.1+1.1 pts
43Champaign County7.1+0.9 pts
43Clay County7.1+0.6 pts
43Cumberland County7.1+0.8 pts
43Ford County7.1+0.7 pts
43Gallatin County7.1+1 pts
43Massac County7.1+0.8 pts
43McHenry County7.1+0.3 pts
52Edgar County7+1 pts
52Greene County7-0.2 pts
52Marion County7+0.2 pts
52Montgomery County7+1 pts
56Hancock County6.9+1 pts
56Jasper County6.90 pts
56Mason County6.9+0.6 pts
56Perry County6.9+1.3 pts
56Will County6.9+0.9 pts
61Christian County6.8+0.8 pts
61Crawford County6.8+0.7 pts
61Henry County6.8+0.7 pts
61Whiteside County6.8+0.5 pts
65Hamilton County6.7+0.9 pts
65Macoupin County6.7+0.8 pts
65Wabash County6.7+0.2 pts
65Williamson County6.7+0.5 pts
69Marshall County6.6+0.7 pts
69Randolph County6.6+0.6 pts
69Stephenson County6.6+0.4 pts
69Vermilion County6.6-0.1 pts
73Clark County6.5+0.7 pts
73De Witt County6.5+0.6 pts
73LaSalle County6.5+0.1 pts
73Livingston County6.5+0.9 pts
73Sangamon County6.5+1 pts
78DuPage County6.4+0.1 pts
78Kendall County6.4+0.5 pts
78Madison County6.4+0.3 pts
78Mercer County6.4+1.1 pts
82Putnam County6.3+0.7 pts
83Edwards County6.2+0.4 pts
83Lee County6.2+0.6 pts
85Adams County6.1+0.5 pts
85Morgan County6.1+0.6 pts
85Shelby County6.1+0.6 pts
88Clinton County6+0.5 pts
88Effingham County6+0.2 pts
88Macon County6+0.2 pts
91Jersey County5.9+0.7 pts
92McLean County5.8+0.5 pts
92Menard County5.8+0.6 pts
94Piatt County5.7+0.2 pts
94Scott County5.7+0.4 pts
94Woodford County5.7+0.6 pts
97Washington County5.6+0.9 pts
98Grundy County5.5+0.9 pts
98Logan County5.5-0.3 pts
98Tazewell County5.5+0.5 pts
101Brown County4.3+0.6 pts
102Monroe County3.80 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2019,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Illinois by uninsured rate, under 65 (US model-based estimate), 2019
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/illinois-counties?period=2019.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Cook County, with 10.9% in 2019, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Monroe County, with 3.8% in 2019.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Illinois: more rankings